/Engine/Source/Editor/Persona/Public/PersonaModule.h
Add common toobar extensions (legacy support) - DEPRECATED
virtual void AddCommonToolbarExtensions ( [FToolBarBuilder](API\Runtime\Slate\Framework\MultiBox\FToolBarBuilder) & InToolbarBuilder, [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [IPersonaToolkit](API\Editor\Persona\IPersonaToolkit) > PersonaToolkit, const [FCommonToolbarExtensionArgs](API\Editor\Persona\FPersonaModule\FCommonToolbarExtensionArgs) & InArgs )